/* ---------- design tokens ---------- */
:root {
  --bg: #fbfbf9;
  --bg-soft: #ffffff;
  --text: #16181d;
  --muted: #63676f;
  --line: #e3e2dd;
  --accent: #b4531f;
  --accent-ink: #ffffff;
  --accent-soft: #f2e6dd;
  --footer-bg: #1b1d22;
  --term-bg: #0d0f13;
  --term-text: #d7dae0;
  --term-ok: #5ad07a;
  --radius: 12px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #101114;
    --bg-soft: #17191d;
    --text: #ececea;
    --muted: #9aa0a8;
    --line: #2a2d33;
    --accent: #e8935c;
    --accent-ink: #17191d;
    --accent-soft: #2a211b;
    --footer-bg: #17191d;
  }
}

:root[data-theme="dark"] {
  --bg: #101114;
  --bg-soft: #17191d;
  --text: #ececea;
  --muted: #9aa0a8;
  --line: #2a2d33;
  --accent: #e8935c;
  --accent-ink: #17191d;
  --accent-soft: #2a211b;
  --footer-bg: #17191d;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 20px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- centered header ---------- */
.site-head {
  text-align: center;
  padding: 54px 0 18px;
}

.avatar-flip {
  width: clamp(150px, 40vw, 190px);
  aspect-ratio: 1;
  margin: 0 auto 22px;
  perspective: 900px;
  cursor: pointer;
  border-radius: 50%;
  outline-offset: 6px;
}

.avatar-flip .faces {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s cubic-bezier(0.4, 0.2, 0.2, 1);
  transform-style: preserve-3d;
}
.avatar-flip:hover .faces,
.avatar-flip:focus-visible .faces { transform: rotateY(180deg); }

.avatar-flip img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid var(--line);
  backface-visibility: hidden;
}
/* octocat transparent hai — uske peeche halka circle taake badge jaisa lage */
.avatar-flip .front {
  background: var(--accent-soft);
  object-fit: contain;
  padding: 6px;
}
.avatar-flip .back { transform: rotateY(180deg); }

.site-name {
  font-size: clamp(1.7rem, 5vw, 2.2rem);
  font-weight: 680;
  letter-spacing: -0.025em;
  margin: 0;
  line-height: 1.2;
}
.site-name a { color: inherit; }
.site-name a:hover { text-decoration: none; color: var(--accent); }

.site-role {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  margin: 8px 0 0;
}

/* nav as buttons (adb.sh style) */
nav.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
}

nav.site-nav a {
  display: inline-block;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 20px;
  font-size: 0.92rem;
  font-weight: 550;
  transition: border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}
nav.site-nav a:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
  transform: translateY(-1px);
}
nav.site-nav a.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

#theme-toggle {
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--muted);
  border-radius: 50%;
  width: 38px;
  height: 38px;
  padding: 0;
  cursor: pointer;
}
#theme-toggle:hover { color: var(--accent); border-color: var(--accent); }
#theme-toggle svg {
  width: 17px;
  height: 17px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- content ---------- */
main { flex: 1; padding: 22px 0 50px; }

h1 {
  font-size: 1.75rem;
  line-height: 1.25;
  margin: 6px 0 14px;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.1rem;
  margin: 38px 0 10px;
  letter-spacing: -0.01em;
}

.lede { color: var(--muted); margin-top: 0; }

.tagline {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0;
}

/* ---------- terminal block (adb.sh mockup-code) ---------- */
.terminal {
  background: var(--term-bg);
  border: 1px solid #23262c;
  border-radius: var(--radius);
  padding: 14px 0 18px;
  overflow-x: auto;
  margin: 18px 0 0;
}

.terminal .bar {
  display: flex;
  gap: 7px;
  padding: 0 18px 12px;
}
.terminal .bar i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #33373f;
}
.terminal .bar i:first-child { background: #e05561; }
.terminal .bar i:nth-child(2) { background: #e0a355; }
.terminal .bar i:nth-child(3) { background: #5ad07a; }

.terminal pre {
  margin: 0;
  padding: 3px 18px;
  font-family: var(--mono);
  font-size: 0.83rem;
  line-height: 1.75;
  color: var(--term-text);
  white-space: pre;
}
.terminal pre[data-prefix]::before {
  content: attr(data-prefix);
  color: #6b7280;
  padding-right: 12px;
}
.terminal .ok { color: var(--term-ok); }
.terminal .cursor::after {
  content: "_";
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---------- skills / tags ---------- */
.links { display: flex; flex-wrap: wrap; gap: 10px; padding: 0; margin: 18px 0 0; list-style: none; }
.links a {
  display: inline-block;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.88rem;
  color: var(--text);
}
.links a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

.stack { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0; list-style: none; }
.stack li {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px 8px;
}

.skill-group { margin-bottom: 16px; }
.skill-group h3 {
  margin: 0 0 6px;
  font-size: 0.82rem;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  font-weight: 600;
}

/* ---------- industries ---------- */
.industries {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
}

.industry {
  border: 1px solid var(--line);
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 13px 14px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.industry:hover { border-color: var(--accent); transform: translateY(-2px); }

.industry svg {
  width: 20px;
  height: 20px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.industry strong { display: block; font-size: 0.92rem; margin: 7px 0 1px; }
.industry span { display: block; color: var(--muted); font-size: 0.8rem; line-height: 1.45; }

/* ---------- FAQ ---------- */
.faq { margin-top: 16px; }

.faq details {
  border: 1px solid var(--line);
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 10px;
}
.faq details[open] { border-color: var(--accent); }

.faq summary {
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 550;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "+";
  font-family: var(--mono);
  color: var(--accent);
  font-size: 1.05rem;
  line-height: 1;
}
.faq details[open] summary::before { content: "−"; }

.faq p { margin: 10px 0 2px; color: var(--muted); font-size: 0.92rem; }

/* ---------- contact icons + hover tooltip ---------- */
.contact-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
}

.contact-icons a {
  position: relative;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  border-radius: 50%;
  color: var(--text);
  transition: border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}
.contact-icons a:hover,
.contact-icons a:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  text-decoration: none;
}

.contact-icons svg {
  width: 21px;
  height: 21px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.contact-icons svg.filled { fill: currentColor; stroke: none; }

.contact-icons a::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--text);
  color: var(--bg);
  font-family: var(--mono);
  font-size: 0.74rem;
  line-height: 1;
  white-space: nowrap;
  padding: 7px 10px;
  border-radius: 7px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.contact-icons a::before {
  content: "";
  position: absolute;
  bottom: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  border: 5px solid transparent;
  border-top-color: var(--text);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.contact-icons a:hover::after,
.contact-icons a:hover::before,
.contact-icons a:focus-visible::after,
.contact-icons a:focus-visible::before {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.contact-icons li:first-child a::after { left: 0; transform: translateX(0) translateY(4px); }
.contact-icons li:first-child a:hover::after,
.contact-icons li:first-child a:focus-visible::after { transform: translateX(0) translateY(0); }
.contact-icons li:last-child a::after { left: auto; right: 0; transform: translateX(0) translateY(4px); }
.contact-icons li:last-child a:hover::after,
.contact-icons li:last-child a:focus-visible::after { transform: translateX(0) translateY(0); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- experience timeline ---------- */
.timeline { margin: 22px 0 0; }

.job {
  border-left: 2px solid var(--line);
  padding: 0 0 26px 20px;
  position: relative;
}
.job:last-child { padding-bottom: 6px; }

.job::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 7px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
}

.job h3 { margin: 0; font-size: 1.02rem; letter-spacing: -0.01em; }
.job .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: baseline;
  color: var(--muted);
  font-size: 0.86rem;
  margin: 2px 0 8px;
}
.job .meta .where { color: var(--text); }
.job .meta .date { font-family: var(--mono); font-size: 0.76rem; }
.job .role-note { margin: 0 0 8px; color: var(--muted); font-size: 0.93rem; font-style: italic; }
.job ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 0.93rem; }
.job ul li { margin-bottom: 4px; }

/* ---------- project cards ---------- */
.card-list { display: grid; gap: 14px; margin-top: 24px; }

.card {
  border: 1px solid var(--line);
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.card:hover { border-color: var(--accent); transform: translateY(-1px); }

.card-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.card h3 { margin: 0; font-size: 1.05rem; letter-spacing: -0.01em; }
.card h3 a { color: var(--text); }
.card h3 a:hover { color: var(--accent); text-decoration: none; }
.card p { margin: 8px 0 12px; color: var(--muted); font-size: 0.94rem; }
.card-links { display: flex; gap: 14px; font-size: 0.84rem; margin-top: 10px; }

/* ---------- pagination ---------- */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin: 32px 0 10px;
}

.pagination a, .pagination span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.86rem;
  color: var(--muted);
  background: var(--bg-soft);
}
.pagination a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.pagination .current { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.pagination .disabled { opacity: 0.4; }

/* ---------- footer bar ---------- */
footer {
  background: var(--footer-bg);
  color: #d8dadf;
  font-size: 0.84rem;
}
footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 18px;
  padding-bottom: 18px;
}
footer a { color: #d8dadf; }
footer a:hover { color: #fff; }

@media (max-width: 520px) {
  h1 { font-size: 1.5rem; }
  .card-top { flex-direction: column; gap: 2px; }
  .site-head { padding-top: 36px; }
  .terminal pre { font-size: 0.76rem; }
}

@media (prefers-reduced-motion: reduce) {
  .industry, .contact-icons a, .card, .avatar-flip .faces,
  .contact-icons a::after, .contact-icons a::before, nav.site-nav a { transition: none; }
  .terminal .cursor::after { animation: none; }
}